Sharpening tool



FIG. 1 is a top view of the sharpening tool seen from the front;

FIG. 2 is a bottom view of the sharpening tool;

FIG. 3 is a side view of the sharpening tool;

FIG. 4 is a rear view of the sharpening tool;

FIG. 5 is a front view of the sharpening tool;

FIG. 6 is a first perspective view of the sharpening tool;

FIG. 7 is a second perspective view of the sharpening tool;

FIG. 8 is a third perspective view of the sharpening tool; and,

FIG. 9 is a fourth perspective view of the sharpening tool. 

CLAIM The ornamental design for the sharpening tool, as shown and described. 